Production of cut flowers is very prevalent in Iran. Carnation is most famous for its use as a cut flower. This study was carried out in the research greenhouse of Islamic Azad University, Isfahan (Khorasgan) Branch, ...Production of cut flowers is very prevalent in Iran. Carnation is most famous for its use as a cut flower. This study was carried out in the research greenhouse of Islamic Azad University, Isfahan (Khorasgan) Branch, to explore the effect of different growing media on some vegetative and reproductive traits of carnation. The experimental design was randomized complete, using 50% perlite and different growing media including: mineral soil and coco peat in 6 proportions (50% coco peat, 10% soil + 40% coco peat, 20% soil + 30% coco peat, 30% soil + 20% coco peat, 40% soil + 10% coco peat, 50% soil). During growth period, irrigation rate, humidity and temperature were similar. The growth characteristics of carnation were determined at the end of growth period. The results indicated that although there were no significant differences between studied growing substrates in chlorophyll a, b. Statistical analysis showed fresh weight of flower was far greater in coco peat 10% + soil 40% and soil 50% compared to other growing media. Fresh and dry weight of root and shoot in soil 50% were higher than other growing media. The results showed that highest concentration of Fe and Zn was observed in coco peat 40% + soil 10%. The concentration of Mn in coco peat 10% + soil 40% was higher than other growing media. The results showed that the highest Ca concentration was observed in soil 50% and the lowest concentration of this element was obtained in coco peat 50%. According to the obtained results, mineral soil can be used as a suitable alternative to cocopeat for cultivation and growth of carnation in greenhouse.展开更多
Peat remains the primary constituent of horticultural growing media in professional use.However,use of peat in horticultural growing media results in greenhouse gas emissions and biodiversity loss due to excavation of...Peat remains the primary constituent of horticultural growing media in professional use.However,use of peat in horticultural growing media results in greenhouse gas emissions and biodiversity loss due to excavation of natural peatlands.Biochar is gaining attention as a sustainable alternative to peat use in horticulture.This study examined the potential of biochar produced from a particular type of sawmill residue,as a partial replacement for peat in horticultural growing media.Five treatments including peat only,biochar only,biochar and peat in 1:1,1:3,and 3:1(V/V)ratios were assessed.The addition of biochar into growing media increased the pH and EC of the medium.However,physical properties(air-filled porosity and water holding capacity)were negatively affected with the increase in biochar content in the medium.According to the germination test results,biochar significantly improved germination and the shoot and root length of germinated seeds of cress,lettuce and tomato when compared to peat-only and biochar-only treatments.The inclusion of biochar in 25-50%volume ratio improved plant growth parameters compared to peat-only and biochar-only media.Results obtained from this study suggest that sawmill residue offers great potential as a feedstock for biochar production and inclusion of biochar has positive effects on seed germination and plant growth that might compete with modified peat.展开更多
In this study,six different growing media(peat+pumice:1:1,v/v;peat+perlite:1:1,v/v;rice hull+pumice:1:2,v/v;coarse sand+peat:2:1,v/v;soil;and cocopeat)were evaluated for their effects on the plant growth and flower qu...In this study,six different growing media(peat+pumice:1:1,v/v;peat+perlite:1:1,v/v;rice hull+pumice:1:2,v/v;coarse sand+peat:2:1,v/v;soil;and cocopeat)were evaluated for their effects on the plant growth and flower quality of the oriental‘Siberia’and‘Vespucci’lily varieties.Seven hundred and twenty bulbs were planted in perforated plastic crates and placed in an unheated greenhouse.The physical and chemical properties of the growing media were examined.The number of days to flowering,plant height,the number of flowers,fresh stem weight,the number of leaves and vase life were investigated in the study.The results indicated that the use of soilless growing media significantly affected plant growth and flower quality when compared with soil.The obtained values varied by substrate type.The earliest flowering time(154.78 d)and the longest plant height(120.82 cm in the‘Siberia’variety)were determined in peat+pumice,whereas the largest number of flowers(7 flowers in Siberia;5.67 flowers in Vespucci)and the highest stem weight(266.13 g in Vespucci;353.91 g in Siberia)were recorded in cocopeat.The vase life of the plants grown in soil was longer than that of the plants grown in the soilless culture.Regarding the number of leaves,rice hull+pumice(57.42 leaves)and sand+peat(54.46 leaves)gave the best results.展开更多
Through Ulmus pumila cv.’Jinye’ container-growing seedling cultivation experiment with 4 types of media or 9 media formulas,the seedling height,the stem and crown diameter indexes of U.pumila cv.jinye were measured....Through Ulmus pumila cv.’Jinye’ container-growing seedling cultivation experiment with 4 types of media or 9 media formulas,the seedling height,the stem and crown diameter indexes of U.pumila cv.jinye were measured.These indexes were significantly or extreme significantly different among various media.The growth of seedling root system varied with different media.The rooting and root number in soft media were much better than that in dense media.According to the growth traits of above-ground and underground parts of U.pumila cv.jinye seedlings,the medium suitable for U.pumila cv.jinye seedling growth was defined as media type I,whose ratio of C/N was 17.7—18.1,the density was higher than 0.26 g·cm-3.Grown on this medium,the height,stem diameter and crown diameter of U.pumila cv.jiny were 1.34—1.57 m,1.36—1.50 cm and 59.6—73.9 cm,respectively.The results of experiment showed also that the physical property played an active role in cultural media,so a good initial medium could provide great assistance of fertilization and water management in seedling culture.展开更多
文摘Production of cut flowers is very prevalent in Iran. Carnation is most famous for its use as a cut flower. This study was carried out in the research greenhouse of Islamic Azad University, Isfahan (Khorasgan) Branch, to explore the effect of different growing media on some vegetative and reproductive traits of carnation. The experimental design was randomized complete, using 50% perlite and different growing media including: mineral soil and coco peat in 6 proportions (50% coco peat, 10% soil + 40% coco peat, 20% soil + 30% coco peat, 30% soil + 20% coco peat, 40% soil + 10% coco peat, 50% soil). During growth period, irrigation rate, humidity and temperature were similar. The growth characteristics of carnation were determined at the end of growth period. The results indicated that although there were no significant differences between studied growing substrates in chlorophyll a, b. Statistical analysis showed fresh weight of flower was far greater in coco peat 10% + soil 40% and soil 50% compared to other growing media. Fresh and dry weight of root and shoot in soil 50% were higher than other growing media. The results showed that highest concentration of Fe and Zn was observed in coco peat 40% + soil 10%. The concentration of Mn in coco peat 10% + soil 40% was higher than other growing media. The results showed that the highest Ca concentration was observed in soil 50% and the lowest concentration of this element was obtained in coco peat 50%. According to the obtained results, mineral soil can be used as a suitable alternative to cocopeat for cultivation and growth of carnation in greenhouse.
基金support from the European Union Horizon 2020 Research and Innovative Training Network program under the Marie Sklodowska-Curie grant agreement No 721991In the UK,H.Creber received financial support from the E4 Doctoral Training Partnership of the Natural Environment Research Council and from Forest Research。
文摘Peat remains the primary constituent of horticultural growing media in professional use.However,use of peat in horticultural growing media results in greenhouse gas emissions and biodiversity loss due to excavation of natural peatlands.Biochar is gaining attention as a sustainable alternative to peat use in horticulture.This study examined the potential of biochar produced from a particular type of sawmill residue,as a partial replacement for peat in horticultural growing media.Five treatments including peat only,biochar only,biochar and peat in 1:1,1:3,and 3:1(V/V)ratios were assessed.The addition of biochar into growing media increased the pH and EC of the medium.However,physical properties(air-filled porosity and water holding capacity)were negatively affected with the increase in biochar content in the medium.According to the germination test results,biochar significantly improved germination and the shoot and root length of germinated seeds of cress,lettuce and tomato when compared to peat-only and biochar-only treatments.The inclusion of biochar in 25-50%volume ratio improved plant growth parameters compared to peat-only and biochar-only media.Results obtained from this study suggest that sawmill residue offers great potential as a feedstock for biochar production and inclusion of biochar has positive effects on seed germination and plant growth that might compete with modified peat.
基金This work was financially supported by the General Directorate of Agricultural Research and Policies(TAGEM)(Grant No.BBSS-10-04)The author acknowledges Assoc.Prof.Köksal Aydinşakir,Ayşe S.Kaya and Bayram Kolak for contributions to the study.
文摘In this study,six different growing media(peat+pumice:1:1,v/v;peat+perlite:1:1,v/v;rice hull+pumice:1:2,v/v;coarse sand+peat:2:1,v/v;soil;and cocopeat)were evaluated for their effects on the plant growth and flower quality of the oriental‘Siberia’and‘Vespucci’lily varieties.Seven hundred and twenty bulbs were planted in perforated plastic crates and placed in an unheated greenhouse.The physical and chemical properties of the growing media were examined.The number of days to flowering,plant height,the number of flowers,fresh stem weight,the number of leaves and vase life were investigated in the study.The results indicated that the use of soilless growing media significantly affected plant growth and flower quality when compared with soil.The obtained values varied by substrate type.The earliest flowering time(154.78 d)and the longest plant height(120.82 cm in the‘Siberia’variety)were determined in peat+pumice,whereas the largest number of flowers(7 flowers in Siberia;5.67 flowers in Vespucci)and the highest stem weight(266.13 g in Vespucci;353.91 g in Siberia)were recorded in cocopeat.The vase life of the plants grown in soil was longer than that of the plants grown in the soilless culture.Regarding the number of leaves,rice hull+pumice(57.42 leaves)and sand+peat(54.46 leaves)gave the best results.
文摘Through Ulmus pumila cv.’Jinye’ container-growing seedling cultivation experiment with 4 types of media or 9 media formulas,the seedling height,the stem and crown diameter indexes of U.pumila cv.jinye were measured.These indexes were significantly or extreme significantly different among various media.The growth of seedling root system varied with different media.The rooting and root number in soft media were much better than that in dense media.According to the growth traits of above-ground and underground parts of U.pumila cv.jinye seedlings,the medium suitable for U.pumila cv.jinye seedling growth was defined as media type I,whose ratio of C/N was 17.7—18.1,the density was higher than 0.26 g·cm-3.Grown on this medium,the height,stem diameter and crown diameter of U.pumila cv.jiny were 1.34—1.57 m,1.36—1.50 cm and 59.6—73.9 cm,respectively.The results of experiment showed also that the physical property played an active role in cultural media,so a good initial medium could provide great assistance of fertilization and water management in seedling culture.
